Herbektb



H. B. NEWTON.

mow. APPLICATION FILED DEC. I3, 1919.

Patented Oct. 3, 1922.

U 1 I I I Patented on. 3, 1922.

' UNITED STATES PATENT OFFICE.

, HERB RTB. Nnwromor BROOKLINE, MAs-saonnsnrrs.

Mom).

Application filed December 13, 1919 Serial no. 344,571.

To all whom it may concern:

Be it known that I, Hemmer B. NEWTON, a citizen of the llnitedStates,residing at Brookline, in thecounty of Norfolkand State oflvlassaclmsetts, have invented an Improvement in Molds, of which thefollowing is a specification. i l 1 My present invention relates to amold. for building blocks having a plurality of block-forming units.

My invention has for its object to provide a mold of the type above setforth so constructed and arranged as to admit of convenientdisassembling into its component members whereby said members may bethoroughly cleaned after each pouring and that admits of its beingquickly reassembled; that has its component members formed with smoothor finished faces, thereby to impart to the molded block correspondinglysmooth and finished faces; that has a com mon base on which all of theindividual blocks of the mold are formed; and that is simple andinexpensive in construction.

The mold is particularly adapted to form the block set forth. in mycopending application filed December 13, 1919, Serial No. 344,572.

Fig. 1 is a plan view of a mold embodying my invention.

Fig. 2 is a side view of the mold of Fig. 1 with a side plate partiallybroken away to illustrate an end plate.

Fig. 3 is a partial transverse section of the mold along line 3-3 ofFig. 1.

Fig. i is a perspective view. of an end plate.

Fig. 5 is a perspective view of a block formed by the mold.

As here shown, the mold comprises the base-plate 10 on which all of theblocks are formed. The base-plate is preferably of iron or steel and isof suitable dimensions, preferably square or rectangular, to enable aplurality of blocks to be formed thereon at one pouring. Its topsurface, or the surface on which the cement is poured, is made smoothand level thereby to impart ,to the blocks when hardened a smooth andhighly finished face.

The mold also includes a plurality of side plates 11. formed ofrectangular strips pref erably of iron or steel having smooth surfaceswhereby to impart to the blocks similarly smooth surfaces. Eachside-plate is adapted to have a width equal to the height of a block;andeachstrip is of such a length as to form the side plate for a pluralityof blocks. 3 The bottom edges ofsaid plates are smoothand plane wherebythey may be seated on the baseplate 10 in such close contact therewithas to prevent leakage of cement from the molds. The top edges of theside-plates are also smooth and plane to admit the passage thereover ofa scraper to remove surplus cement after pouring and to level off themold.

A plurality of end-plates 12, all of equal length, and of a heightsubstantially equal to that of said. side-plates, are disposed betweensaid side-plates and serve to divide the mold into a series ofcompartments or units, each adapted to form a block when cement ispoured therein and permitted to set. Said end-plates may be of anydesired shape but, as here shown, the mold is adapted to form the blockillustrated in Fig. 5; and for this purpose each end-plate has thesubstantially cylindrical boss 13 extending from the middle of one edgeto substantially the center of the plate, and the rectangnlar enlargedportion 14L extending from said boss to the top edge of the plate.

Each end-plate has top and bottom holes 15 and 15 passing longitudinallythere through and the side-plates have correspending aperturesthcrethrough. Tie-rods 16 are extended through said holes and aperturesand nuts 17 threaded thereon serve to draw the inner side-plates andendplates tightly together between the outermost side-plates,therebysecuring sald side and end-plates together into a unitary structure.Said structure, so formed, is received upon the base-plate 10 and themold is in condition to receive the cement or other material of whichthe blocks are to be composed. I

After the cement has set, the nuts 17 are loosened and removed, and thetie-rods are withdrawn from the side and end plates to permit theseparation thereof, and the removal of the formed blocks. Due to theconstruction of the mold, every surface adapted to be in contact withthe cement may have a smooth surface whereby to 1mpart to the moldedblocks a slmilarly smooth surface; and every component of the mold.

a may be se ara-ted from its cooperatin members for c eaning,rte-assembled. i a

It issobvious that i'modifiedtr forms oi: the mold herein-described maybe made Without departing from the spirit, of my invention. l

I claim I I 1. A building block mold, comprising a and be quickly aneasily base plate, forming one iaceiof all' molds;

side plates arranged in spaced" relation .lengthwise saidibase plate,moldings-end plates Slidably'fitting between thesideplates and-resting'on. said base plate, and 1 means passing longitudinally through alignedend plates;- and transversely through the ..:'side plates mherebyi each:series of, aligned :end

platessare. independentlyiseeured'in place.

name! to this s 2. A building block mold comprising a mold base commonto all the molds, side plates arranged in spacedt-relatipnlqngitudinallyof the base, endsplateshwnauged in alignment transversely of the baseand between the side plates, said end plates being free of interlockingconnection with the side plates or base, and rods passed through eachseries of alignment end plates and side platesiandisecured 0nd thelatter, whereby any series of en plates may be independently removedatiwill without efl'ecting therfiormingwmlat-ion of other end plates.

1ln testimonyawhereof, I have signed my cifieation. 4 ERBERT B. NEWTON.-Wzitness:

H. B. DAVIS.

